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All Patents in class 72/57
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
32,102Apr. 16, 1861J. DodgeHardening saw-platestool making machines
174,609Mar. 07, 1876R. WrightImprovement in Machines for Bending Tubingpipe and tube benders
2,344,743Mar. 21, 1944H.C. Smith, Jr.Forming Method and Apparatussheet metal forming rolls
2,766,711Oct. 16, 1956K.P. Martin, L.A. DeverPresshydraulic metalworking presses
2,878,767Mar. 24, 1959R.A. PaultonForming Press Diaphragmhydraulic metalworking presses
2,937,606May 24, 1960R.A. PaultonMetal Forming Presshydraulic metalworking presses
3,115,858Dec. 31, 1963C.L. MitchellHydraulic Presshydraulic metalworking presses
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